﻿<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8" />
  <title>hhh</title>
  <meta name="renderer" content="webkit" />
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />

  <style>
    html,
    body {
      margin: 0px;
      width: 100%;
      height: 100%;
      overflow: hidden;
      background: #000;
    }
  </style>
</head>

<body>
  <canvas id="canvas" style="position: absolute; width: 100%; height: 100%; z-index: 8888"></canvas>
  <canvas style="position: absolute; width: 100%; height: 100%; z-index: 9999" class="canvas"></canvas>
  <div class="overlay">
    <div class="tabs">
      <div class="tabs-labels">
        <span class="tabs-label">Commands</span><span class="tabs-label">Info</span><span
          class="tabs-label">Share</span>
      </div>

      <div class="tabs-panels">
        <ul class="tabs-panel commands"></ul>
      </div>
    </div>
  </div>
  <script>
    function initVars() {
      pi = Math.PI;
      ctx = canvas.getContext("2d");
      canvas.width = canvas.clientWidth;
      canvas.height = canvas.clientHeight;
      cx = canvas.width / 2;
      cy = canvas.height / 2;
      playerZ = -25;
      playerX =
        playerY =
        playerVX =
        playerVY =
        playerVZ =
        pitch =
        yaw =
        pitchV =
        yawV =
        0;
      scale = 600;
      seedTimer = 0;
      (seedInterval = 5), (seedLife = 100);
      gravity = 0.02;
      seeds = new Array();
      sparkPics = new Array();
      s = "https://cantelope.org/NYE/";
      for (i = 1; i <= 10; ++i) {
        sparkPic = new Image();
        sparkPic.src = s + "spark" + i + ".png";
        sparkPics.push(sparkPic);
      }
      sparks = new Array();
      pow1 = new Audio(s + "pow1.ogg");
      pow2 = new Audio(s + "pow2.ogg");
      pow3 = new Audio(s + "pow3.ogg");
      pow4 = new Audio(s + "pow4.ogg");
      frames = 0;
    }

    function rasterizePoint(x, y, z) {
      var p, d;
      x -= playerX;
      y -= playerY;
      z -= playerZ;
      p = Math.atan2(x, z);
      d = Math.sqrt(x * x + z * z);
      x = Math.sin(p - yaw) * d;
      z = Math.cos(p - yaw) * d;
      p = Math.atan2(y, z);
      d = Math.sqrt(y * y + z * z);
      y = Math.sin(p - pitch) * d;
      z = Math.cos(p - pitch) * d;
      var rx1 = -1000,
        ry1 = 1,
        rx2 = 1000,
        ry2 = 1,
        rx3 = 0,
        ry3 = 0,
        rx4 = x,
        ry4 = z,
        uc = (ry4 - ry3) * (rx2 - rx1) - (rx4 - rx3) * (ry2 - ry1);
      if (!uc) return { x: 0, y: 0, d: -1 };
      var ua = ((rx4 - rx3) * (ry1 - ry3) - (ry4 - ry3) * (rx1 - rx3)) / uc;
      var ub = ((rx2 - rx1) * (ry1 - ry3) - (ry2 - ry1) * (rx1 - rx3)) / uc;
      if (!z) z = 0.000000001;
      if (ua > 0 && ua < 1 && ub > 0 && ub < 1) {
        return {
          x: cx + (rx1 + ua * (rx2 - rx1)) * scale,
          y: cy + (y / z) * scale,
          d: Math.sqrt(x * x + y * y + z * z),
        };
      } else {
        return {
          x: cx + (rx1 + ua * (rx2 - rx1)) * scale,
          y: cy + (y / z) * scale,
          d: -1,
        };
      }
    }

    function spawnSeed() {
      seed = new Object();
      seed.x = -50 + Math.random() * 100;
      seed.y = 25;
      seed.z = -50 + Math.random() * 100;
      seed.vx = 0.1 - Math.random() * 0.2;
      seed.vy = -1.5; //*(1+Math.random()/2);
      seed.vz = 0.1 - Math.random() * 0.2;
      seed.born = frames;
      seeds.push(seed);
    }

    function splode(x, y, z) {
      t = 5 + parseInt(Math.random() * 150);
      sparkV = 1 + Math.random() * 2.5;
      type = parseInt(Math.random() * 3);
      switch (type) {
        case 0:
          pic1 = parseInt(Math.random() * 10);
          break;
        case 1:
          pic1 = parseInt(Math.random() * 10);
          do {
            pic2 = parseInt(Math.random() * 10);
          } while (pic2 == pic1);
          break;
        case 2:
          pic1 = parseInt(Math.random() * 10);
          do {
            pic2 = parseInt(Math.random() * 10);
          } while (pic2 == pic1);
          do {
            pic3 = parseInt(Math.random() * 10);
          } while (pic3 == pic1 || pic3 == pic2);
          break;
      }
      for (m = 1; m < t; ++m) {
        spark = new Object();
        spark.x = x;
        spark.y = y;
        spark.z = z;
        p1 = pi * 2 * Math.random();
        p2 = pi * Math.random();
        v = sparkV * (1 + Math.random() / 6);
        spark.vx = Math.sin(p1) * Math.sin(p2) * v;
        spark.vz = Math.cos(p1) * Math.sin(p2) * v;
        spark.vy = Math.cos(p2) * v;
        switch (type) {
          case 0:
            spark.img = sparkPics[pic1];
            break;
          case 1:
            spark.img = sparkPics[parseInt(Math.random() * 2) ? pic1 : pic2];
            break;
          case 2:
            switch (parseInt(Math.random() * 3)) {
              case 0:
                spark.img = sparkPics[pic1];
                break;
              case 1:
                spark.img = sparkPics[pic2];
                break;
              case 2:
                spark.img = sparkPics[pic3];
                break;
            }
            break;
        }
        spark.radius = 25 + Math.random() * 50;
        spark.alpha = 1;
        spark.trail = new Array();
        sparks.push(spark);
      }
      switch (parseInt(Math.random() * 4)) {
        case 0:
          pow = new Audio(s + "pow1.ogg");
          break;
        case 1:
          pow = new Audio(s + "pow2.ogg");
          break;
        case 2:
          pow = new Audio(s + "pow3.ogg");
          break;
        case 3:
          pow = new Audio(s + "pow4.ogg");
          break;
      }
      d = Math.sqrt(
        (x - playerX) * (x - playerX) +
        (y - playerY) * (y - playerY) +
        (z - playerZ) * (z - playerZ)
      );
        /*pow.volume=1.5/(1+d/10)*/ pow.play();
    }

    function doLogic() {
      if (seedTimer < frames) {
        seedTimer = frames + seedInterval * Math.random() * 10;
        spawnSeed();
      }
      for (i = 0; i < seeds.length; ++i) {
        seeds[i].vy += gravity;
        seeds[i].x += seeds[i].vx;
        seeds[i].y += seeds[i].vy;
        seeds[i].z += seeds[i].vz;
        if (frames - seeds[i].born > seedLife) {
          splode(seeds[i].x, seeds[i].y, seeds[i].z);
          seeds.splice(i, 1);
        }
      }
      for (i = 0; i < sparks.length; ++i) {
        if (sparks[i].alpha > 0 && sparks[i].radius > 5) {
          sparks[i].alpha -= 0.01;
          sparks[i].radius /= 1.02;
          sparks[i].vy += gravity;
          point = new Object();
          point.x = sparks[i].x;
          point.y = sparks[i].y;
          point.z = sparks[i].z;
          if (sparks[i].trail.length) {
            x = sparks[i].trail[sparks[i].trail.length - 1].x;
            y = sparks[i].trail[sparks[i].trail.length - 1].y;
            z = sparks[i].trail[sparks[i].trail.length - 1].z;
            d =
              (point.x - x) * (point.x - x) +
              (point.y - y) * (point.y - y) +
              (point.z - z) * (point.z - z);
            if (d > 9) {
              sparks[i].trail.push(point);
            }
          } else {
            sparks[i].trail.push(point);
          }
          if (sparks[i].trail.length > 5) sparks[i].trail.splice(0, 1);
          sparks[i].x += sparks[i].vx;
          sparks[i].y += sparks[i].vy;
          sparks[i].z += sparks[i].vz;
          sparks[i].vx /= 1.075;
          sparks[i].vy /= 1.075;
          sparks[i].vz /= 1.075;
        } else {
          sparks.splice(i, 1);
        }
      }
      p = Math.atan2(playerX, playerZ);
      d = Math.sqrt(playerX * playerX + playerZ * playerZ);
      d += Math.sin(frames / 80) / 1.25;
      t = Math.sin(frames / 200) / 40;
      playerX = Math.sin(p + t) * d;
      playerZ = Math.cos(p + t) * d;
      yaw = pi + p + t;
    }

    function rgb(col) {
      var r = parseInt((0.5 + Math.sin(col) * 0.5) * 16);
      var g = parseInt((0.5 + Math.cos(col) * 0.5) * 16);
      var b = parseInt((0.5 - Math.sin(col) * 0.5) * 16);
      return "#" + r.toString(16) + g.toString(16) + b.toString(16);
    }

    function draw() {
      ctx.clearRect(0, 0, cx * 2, cy * 2);

      ctx.fillStyle = "#ff8";
      for (i = -100; i < 100; i += 3) {
        for (j = -100; j < 100; j += 4) {
          x = i;
          z = j;
          y = 25;
          point = rasterizePoint(x, y, z);
          if (point.d != -1) {
            size = 250 / (1 + point.d);
            d = Math.sqrt(x * x + z * z);
            a = 0.75 - Math.pow(d / 100, 6) * 0.75;
            if (a > 0) {
              ctx.globalAlpha = a;
              ctx.fillRect(
                point.x - size / 2,
                point.y - size / 2,
                size,
                size
              );
            }
          }
        }
      }
      ctx.globalAlpha = 1;
      for (i = 0; i < seeds.length; ++i) {
        point = rasterizePoint(seeds[i].x, seeds[i].y, seeds[i].z);
        if (point.d != -1) {
          size = 200 / (1 + point.d);
          ctx.fillRect(point.x - size / 2, point.y - size / 2, size, size);
        }
      }
      point1 = new Object();
      for (i = 0; i < sparks.length; ++i) {
        point = rasterizePoint(sparks[i].x, sparks[i].y, sparks[i].z);
        if (point.d != -1) {
          size = (sparks[i].radius * 200) / (1 + point.d);
          if (sparks[i].alpha < 0) sparks[i].alpha = 0;
          if (sparks[i].trail.length) {
            point1.x = point.x;
            point1.y = point.y;
            switch (sparks[i].img) {
              case sparkPics[0]:
                ctx.strokeStyle = "#f84";
                break;
              case sparkPics[1]:
                ctx.strokeStyle = "#84f";
                break;
              case sparkPics[2]:
                ctx.strokeStyle = "#8ff";
                break;
              case sparkPics[3]:
                ctx.strokeStyle = "#fff";
                break;
              case sparkPics[4]:
                ctx.strokeStyle = "#4f8";
                break;
              case sparkPics[5]:
                ctx.strokeStyle = "#f44";
                break;
              case sparkPics[6]:
                ctx.strokeStyle = "#f84";
                break;
              case sparkPics[7]:
                ctx.strokeStyle = "#84f";
                break;
              case sparkPics[8]:
                ctx.strokeStyle = "#fff";
                break;
              case sparkPics[9]:
                ctx.strokeStyle = "#44f";
                break;
            }
            for (j = sparks[i].trail.length - 1; j >= 0; --j) {
              point2 = rasterizePoint(
                sparks[i].trail[j].x,
                sparks[i].trail[j].y,
                sparks[i].trail[j].z
              );
              if (point2.d != -1) {
                ctx.globalAlpha =
                  ((j / sparks[i].trail.length) * sparks[i].alpha) / 2;
                ctx.beginPath();
                ctx.moveTo(point1.x, point1.y);
                ctx.lineWidth =
                  1 +
                  (sparks[i].radius * 10) /
                  (sparks[i].trail.length - j) /
                  (1 + point2.d);
                ctx.lineTo(point2.x, point2.y);
                ctx.stroke();
                point1.x = point2.x;
                point1.y = point2.y;
              }
            }
          }
          ctx.globalAlpha = sparks[i].alpha;
          ctx.drawImage(
            sparks[i].img,
            point.x - size / 2,
            point.y - size / 2,
            size,
            size
          );
        }
      }
    }

    function frame() {
      if (frames > 100000) {
        seedTimer = 0;
        frames = 0;
      }
      frames++;
      draw();
      doLogic();
      requestAnimationFrame(frame);
    }

    window.addEventListener("resize", () => {
      canvas.width = canvas.clientWidth;
      canvas.height = canvas.clientHeight;
      cx = canvas.width / 2;
      cy = canvas.height / 2;
    });

    initVars();
    frame();
  </script>
  <script src="js/index.js"></script>
  <video controls="" autoplay="" style="display: none; height: 0" name="media">
    <source
      src="https://webfs.ali.kugou.com/202212311401/c12fd67b0106b68294c3eb354aec3786/part/0/1516896/KGTX/CLTX001/clip_488850641544fb4c6e14e6b8356d084f.mp3"
      type="audio/mpeg" />
  </video>
</body>

</html>